## If $$x$$ is an integer, then which of the following statements about $$x^2 - x - 1$$ is true?

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### If $$x$$ is an integer, then which of the following statements about $$x^2 - x - 1$$ is true?

by Gmat_mission » Thu Sep 24, 2020 2:38 am

00:00

A

B

C

D

E

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If $$x$$ is an integer, then which of the following statements about $$x^2 - x - 1$$ is true?

A) It is always odd.
B) It is always even.
C) It is always positive.
D) It is even when $$x$$ is even and odd when $$x$$ is odd.
E) It is even when $$x$$ is odd and odd when $$x$$ is even.